The startup has developed a technology that mineralizes carbon dioxide within concrete, enhancing its strength while reducing production costs. This process enables the construction industry to transition from a carbon emitter to a carbon sink, addressing the significant greenhouse gas emissions associated with traditional concrete production.
Funding
$3.9M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
CZVFounders
Product
Problem
The production of concrete accounts for approximately 8% of global carbon dioxide emissions, with traditional methods relying on unsustainable waste byproducts to reduce embodied carbon. These materials are quickly depleting and can only displace a fraction of the current global demand, necessitating a scalable and sustainable solution.
Solution
Concrete4Change (C4C) is developing a technology that captures and mineralizes CO2 within concrete, transforming the construction industry from a carbon emitter to a carbon sink. C4C's approach uses a proprietary, low-cost porous granular absorbent material derived from waste streams as a carrier for CO2. This carrier absorbs CO2 from industrial processes, including cement production flue gas, and introduces it into fresh concrete mixes. The controlled carbonation process enhances concrete strength, reduces the need for cement, and permanently locks up CO2, resulting in net-zero concrete at a lower cost.
Target Audience
The primary target audience includes concrete manufacturers, construction companies, and government bodies seeking to reduce the carbon footprint of concrete and achieve net-zero emissions targets.
Features
- Proprietary porous granular absorbent material derived from recycled waste streams (wood, glass, ceramic, plastic)
- CO2 capture and mineralization within concrete mixes using a specially designed carrier
- Uniform and controlled carbonation of concrete during curing
- Increased concrete strength, enabling reduction in cement usage by 10-15%
- Compatibility with various CO2 sources, including cement production flue gas
- Integration with industry-standard concrete production processes without requiring changes to production lines
- CO2 sequestration at a rate 10x greater than existing approaches for ready-mix concrete
- CO2 calculator to estimate emission savings based on concrete mix design